Apparatus for laying street and road paving material.



v w. BAYLEY. APPARATUS FOR LAYING STREET AND ROAD. PAVING MATERIAL,

APPLICATION FILED APR. I8, I9II.

Patented Mar. 5, 1918.

4 SHEETS-SHEET I.

W. BAYLEY.

APPARATUS FOR LAYING STREET AND ROAD PAVING MATERIAL.

APPLICATION FILED APR. 18. I911- 1,258,299. I Patented Mar. 5,1918.

(sways-5115 512. qb w I ,y-f-,p,y r I I -WIJULIW IM W. BAYLEY.

APPARATUS FOR LAYING STREET AND ROAD PAVING MATERIAL.

APPLICATION FILED APR.1B| l ll- P Patented Mar. 0, 1918.

4 SHEETS-SHEET 3.

Elm-l4. I

w. BAYLEY.

APPARATUS FOR LAYING STREET AND ROAD PAVING MATERIAL.

APPLICATION FlLED APR-13p 9H. 1 ,258,299. Patented Mar. 5, 1918.

4 $HEETSSHEET 4.

Ullllllllll' I ll 2 UNITED STATESPATENT OFFICE.

wILLrAJyr iBAYLEY, or srmnermnn, OHIO.

arrana'rus ron LAYING sinner Ann ROAD PAVING MATERIA Spec'iflcation of LettersPatent. Patented Mar, 1918 Application filed April 18,1911. .Sertal no. 621,943.

To all whom it may concern:

Be it known that I, WILLIAM B AYLEr, citizen of the United States, residingat Springfield, in the county of Clark, State of Ohio, have invented certainnew and useful Improvements in Apparatus for Laying Street and Road Paving Material, of which the following is a specification; reference being had therein to the accompanying drawings.

This invention relates; to an apparatus for laying street'and road paving material,

' .-'such as cement mixed with broken stone, or

similarmaterial, to surface this material with asphalt or anything similar, to surface old paved street with asphalt, or old mac-o adam'roads with cement or asphalt, by amethod of rolling to make more perfect \vork, al'so, to-efiect a great saving of labor,-

and consequently to lower the cost of such work, bya process of laying/the sand and stone along the road or street, in theproper proportions, so that. the apparatus can take its supply from the street or road, :as, it advances.

Heretofore it has been the practice, after a street orroadway has been graded, to

, make piles ofsand in supposedly convenient places, also to make piles of'stone in supposedly convenient places, keeping each kind of material separate and distinct,vand,. .from' which piles they are wheeled to a cement mixer, it must be delivered to a mixer box in the required quantities, namely, so many barrows of sand, then so many barrowsof stone, which are dumped into the mixer box, along with-the proper'proportions ofcement; The count must always be kept. It is then-elevated into the mixer, mixed with water and .delivered into the labor, it is also capable of gre'at speed. Heretofore in surfacing a cement covered road orstreet, it has been the practice to dump wagon loads of mixedmaterial (as:- phalt mixed with sand) uponthestreet, in

a hot condition, spread it with shovels and rakes, as evenly as it is possible hand, then roll it down with small. road rollers,

in orderto get it compressed and well rolled on to and cemented to the sub-bed, but it is i absolutely impossible to roll thus, every square foot to the same amount-of compression. This apparatus spreads the material evenly,'keeps'it warm, irons it down while warm, then rolls it to an even surface, by crossrolling, which continually rolls down the whole surface, every square foot getting The preferred manner of placing the materlal 1n 'thestreet or road in front of my apparatus, isto place it in a long pile, or a number of long piles, along the roadway,

the number being determined bythe width of the roadway, and the form of gathering up and elevating mechanism used. And it the same amount of rolling, and without Y -crowd1ng 1t out onto the sides of the road;

can even be distributed over the whole road- 'w ay within a foot or two of the edges, placing the sand below with thestoneiabove, placing the material in the required proportions,

. namely, one-'partsand to twoparts stone, or

two parts sand to three partsstone, as. may I be desired. z The object-of placing the 'sand' r below is to have thegathering up mechanism work into the sand, and under the stone, and

in this way doing cleaner and easier vwork.

. The preferred form of my apparatus com prises a general frame, which is-adapted to travel over-the road-bed which is to be paved, and contains means for gathering up the'material from the street or roadway, 1n the nature of conveying screws, or shovels means for elevating. the material and delivering it to the mixers, in the shape of elevating buckets and hoppers; means for dis posin of excess matemal, in the shape of troug-s and -slides; m'eans for mixingthe "material, in the shape of mixers; means fordistributing the material. across'the road-bed and xbeatinglit down, inthe shape of an elongated partly bottomless slot, filled with sections-'ofspiral bars, 'or brokenscrews, which-are elevated; to a little over the verti calposition and then allowed to drop ahead" j by gravity, striking a blow agai'nstjthe mate'- "rial, settling theheavier pieces, bringing the. water to the top and at the same time moving it along each way from the mixer, to get an "even depth in the slot; means to-advance the apparatus, in the shape of' carrying ii/heels, withleve'rs and pawls; means to smooth down and strike off the material, and other means to roll down the material at the rear of the apparatus, in the shape of rollers traveling across the roadway and at the same time trailing as much as is necessary,

ing-bed and lower another one beyond the edge of the paving-bed, so as to prevent wrinkling, in the shape of levers to throw the slide that carries the caster rollers over the center of its motion. If only one roller were used instead of the double caster, it would have to be lifted from the surface of the paving-bed before reaching the edge and turned around, it would be practicable, but more difiicult, therefore, I have used the double caster rollers.

The apparatus is self-contained, in the sense, that it carries its own motor for operating the several parts, and for advancing it as the work progresses. It i controlled by an operator, who sits on a seat withln view of the several operations going on and having the main clutch levers within reach.

My invention comprehends also such modification as would include the enumerated means or features with others, or with necessary adjuncts, as well as an apparatus having some or less than all of these fea tures, as I consider myself 'to be the first to devise an apparatus, th t will make possible a mechanical process, by which the crude material in front of a paving apparatus can be gathered up from the pavingbed, without the intervention of human labor; or make possible a mechanical method for rolling a paving-bed crosswise to prevent wrinkling by the material pushing ahead of the roller and crowding over on the edges of the paving-bed, it also rolls every square inch of the bed exactly the same number of times making it perfectly uniform in density and even in contour.

In the drawings Figure 0 is a partly sectional, side view on the line (A A on Fig. 8) it shows the process material on the bed in front. Fig. 1 is a detached view of the hopper and scoop, just after it has been unlatched. Fig. 2 is a view of a modification of the end of the hopper, as it is used when the mixer is removed, when laying sheet asphalt. Fig. 3 is an outside view of the side of the apparatus. Figs. 4, 5, 6, are side, front and end views of the crank used to communicate forward movement to the apparatus. Fig. 7 is a section of a reinforced cement road, showing the reinforcing metal in the finished work. Fig. 8 is a plan view of the apparatus, with the tracks at the side of-the road or street, showing the hopper and scoop elevated, showing the process material on the paving-bed in front.

Fig. 9 is a front view of the end of the apparatus with the wire reel empty. Fig. 10 is a back view of the apparatus, and a section of a reinforced cement road with surface of asphalt. Figs. 11 and 12 are views of the washer on top of the caster trunnion, Figs. 13 and 14 are side views and plan of the slide carrying the caster rollers. Figs. 15 and 16 are sideand end views of the trolley carriage, that carries the slide for the caster rollers. Figs. 17 and 18 are side and back views of the pulling and reversing levers, that communicate motion to the caster roller trolley. Fig. 19 is a side view of a three roller caster, showing each roller doing its part of the work. Fig. 20 is a side view, in section, of the apparatus adapted to laying and reinforcing sheet asphalt, shown with the caster roller coming toward you, and with the conveyer broken screws modified. It also shows a reinforced cement road with the surface of reinforced asphalt being laid on it. Fig. 21 is a side view of a modified device, for gathering in and elevating the material for the roadway, it shows a section of the process material in front. Fig. 22 .is a front view of the same device. Fig. 23 is a plan view of the front of the apparatus, ,having a number of the devices shown in Figs. 21 and 22, four mixers and elevating devices, operating in two double units, it shows plainly a plan of the process material on the paving-bed'in front of the apparatus. The arrows refer to the directions in which the apparatus, or separate parts are moving or about to start to move.

The numeral 1 designates a road-bed, graded and prepared to receive a layer of cement 2, which may or may not be given a surface coat 2'. In front of the apparatus, over the road-bed 1, an elongated pile of sand 1 and stone 1" has been placed, the stone on top of the sand, and both .in the requisite quantity for the work to be done. At either side of the road-bed I place rails 3, held by blocks 4, these rails are secured to the blocks, and laid on a previously prepared cement gutter 4, or on a timber, which is intended to hold the cement on the side until it sets. The: apparatus is supported by wheels, forward wheels 5, and rear wheels 6, which travel on these rails, the front wheels run on spindles 7 secured to bracket 8, the rear wheels run on spindles 9, secured to bracket 10.

The frame is composed of structural shapes, cross channels 11, 12, 13, 14, 15, 16. side channel 17 secured strongly together,

it is preferably made of metal but could b of wood, or wood and metal, thechannels- 13, 14, 15, 16 are further connected by plates 18, 19, 20, these plates also carry bearings for the several shafts, lugs for the clutches and for various other uses.

At the forward end of plates 18 and 19, in bearings 21 is pivoted the plate 22, to which is secured a hopper 23-in Fig. 0 it is shown in two positions, down and up, in Fig. 1 it is shown up also, but with the scoop unlatched. At the forward end of hopper 23, a shaft 24 is ournaled across, on each end of the shaft a wheel 25 runs, these wheels carry the hopper and follow the surface of the ground, so that the front lower edge of the hopper which is provided with teeth 26, cannot scrape below the surfaceof the ground, but just gather the loose material from the ground as the apparatus is advanced. Just inside of the hopper 23, and secured to the shaft 24, is a scoop 27 In the down position of the hopper 23 on Fig. 0 this scoop is shown in full lines in its normal or rest position, with its scooped end drawn back within the hopper, allowing the hopper to be advanced under the pile of material in front, and the latch 28, (which is secured to the link 29, by the links 30 and thrown forward by the spring 31,) thrown forward, and latched to the angle iron 32. Also in the down position of the hopper 23, the scoop 27 is shown in dotted lines, drawn forward into the pile of material, and full of material, this scoop is provided at its forward end, with teeth 33, to enable it to dig into the material easily. The scoop 27 thus not only serves to collect the material but also serves as a gate for the lower end of the hopper or chute 23 to retain therein the collected material during the upward swinging movement of the hopper or chute. The hopper and scoop thus form a pivoted telescopic receiving chute, of which the scoop forms a telescopic gate operating in an arcuate path. In the up position of the hopper, the scoop is still shown in the same position, as in the dotted lines below, but with the latch 28 drawn against the stop 34, and the latch unhooked from the angle iron. When in this position, the scoop turns by the pull on the link 29, which is pivoted to an arm 35, the arm and the scoop both being secured rigidly to the shaft 24. The hopper now drops forward and a little down until the hopper and the scoop occupy the position shown in Fig. 1 and it is also now ready to be lowered to its normal down position, shown in Fig. 0. But when the hopper and wheels first touch the ground, the cable 36 will be taut, and the latch and link will occupy position D, shown in dotted lines. initial operation of the cable 36, the scoop or telescopic gate is operated independent It will thus be seen that at the of the receiving chute or hopper and by.

subsequent operation, the two said members are elevated in unison, the scoop or telescopic gate being released when the chute or hopperreaches a predetermined position. In order to again fasten the latch, a bail 37 is pivoted to each side of the hopper, it is arranged to be thrown forward by a spring 38,0n each side of the hopper,and as the cable slackens, it forcesthe latch and link forward until the latch is again caught on'the'angle 32, and the cable becomes slack and the hopper and scoop are again in the normal position,ready to repeat their motion. Cable 36 is operated over a wheel 36' pivoted on the .pin 36" at the top of the derrick standards 36". The combined hopper and scoop when it is lifted, delivers the material from the road-bed, into a suitable mixer 39 which receives motion from the shaft 53, through the chain wheels 85, 86 and the chain 86. The hopper while being lifted overturns a water box 40, by means of a rod 41. The material is thus mixed with water and with cement, which has. previously been dumped into the hopper, all passing into the mixer, and when it is properly mixed, the operator turns the spout 42, by means of a handle 43,

and the material is dropped into a partly bottomless elongated slot 44, extending in the apparatus clear across the roadway, where the material is operated upon by the heaters and conveyors 45. As the machine advances the smoothing bottom 44 passes over the material which has been operated on in the elongated slot, it presses it down, and smooths it, and leaves it in a finished state, unless it is desired to roll it afterward, this process I will describe further on. Beaters 45 are rotated by the dogs 46, these dogs are secured to the shaft47 and allow a certain amount of free motion to the beaters, which lets them drop ahead. The shaft gets its rotary motion from the worm wheel 48, secured to it, and operated by a worin 49, through the shaft 50, and bevel gears 51 and 52. Wheel 52 is secured to shaft 53, which receives motion from the gear 54, through a clutch 55, thrown in by a lever 56. Gear'54 is in turn driven by the double intermediate gear 57 and the pinion 58, on the motor 59. All of the separate movements are capable of being disengaged by clutches, and the important clutches are all within reach of the operator, who sits on the seat 59' which is supported by the spring 59".

Shaft 53 at its rear end has a worm 60, which drives a worm wheel 61, the worm wheel 61 is secured to shaft 62, which runs in bearings on the plates 18, 19, 20, channels 17 and bracket 63. Just back of the center of the mixer, it carries a drum 64, this drum 64 winds up the cable 36, when the 66. When wound up it is held by a brake band 67 one end of which is pivoted to the pin 68, on the bracket 69, the other end ispivoted to the lower end of the lever 70 WhlCh is also pivoted on the bracket 69 this brake also lets out the cable as desired and lowers the hopper 23.

Mounted low on the front of the apparatus, is a long reel 71, upon which prepared wire 71 is wound, this wire consists of long strands wound around the reel at intervals, and connected crosswise and in line with the axis of the reel by wires 72, making a mesh of any desired size. It can be made of any desired gage, to suit the work. I do not restrict myselfto this particular kind of repared wire, the apparatus can use any sty e of commercial woven wire, or rope, or cord net, or can use numerous rolls of plain single wires, to lie in lines along the roadway, and the cross wires can be put on as the work progresses. This wire passes under the bottom or gage block 73, which extends down to within the required distance from the earth. The wire being drawn taut across the gage block, is held up over the paving-bed to a oint where it is desired that it should be embedded into the cement or other substances. At the commencement of this work, all of the wires 71 are fastened to Stakes, and the wire is kept taut by a friction brake block 74, which is secured to lever75, which is pivoted to bracket 76, and held down by the weight 77, onto the brake wheel 78, the brake wheel being secured to the reel.

The foregoing description deals with the parts of my invention more particularly adapted to cement work on narrow roadways. I will now refer to a modification of the gathering up and elevating mechanism for taking the material from the roadway, which is better adapted to wide roadways, and more speedy work.

Sand and broken stone have been placed on the road-bed 1, in the same manner as has been described.

Referring to Fig. 23 shaft 53 is extended at its forward end and has secured to it a gear 79, which drives a ear 80, which is secured to the shaft 81, t is shaft extends across the front of the apparatus and is carried by bearings in brackets 82. Secured to the shaft are also gears 83, that communicate motion to the mixers 39, through the shafts 84, and the sprocket 85 and 86. Also secured to shaft 81 are sprockets 87, which communicate motion to the elevator shafts 88, through the chains 89, to the sprockets 90.

Trunnions on the ends of the hearings on brackets 82, carry links 91 and links 92, links 91 have bearings in their top ends, in which shafts 88 run. Shafts 88 have suspended on their centers, links 92, which extend down and suspend at their lower ends shafts 94. Shafts 94 also run in bearings A asphalt or carried by links 92'. Links 92 are pivoted on shafts 95, these shafts are secured to links 92. Links 92 have extensions 92", on the ends of which are pivoted pins 92 with holes through them through which pass bolts 92"", these bolts are secured to link 92, by pins 92"', the bolts are secured to pins 92" by nuts on each side. It will be seen that this arrangement of parts, secures links 92, and 92" rigidly together and at the same time makes an adjustment at these points to be used in case of higher or lower levels of the sub-road-wa 1. It will also be seen that when all of t ese links 91, 92, 92', 93'

are connected up, they form rigid structures,

but are free to turn on the trunnions on brackets 82. These structures are carried on the wheels 96, which run on the ends of the shaft 95 and control the depth to which the screws 97, and buckets 98 ,shall dig. Buckets 98 are connected by links 99, formmg chains, which are driven by chain sprockets 100, and in this way elevate the material, and communicate motion to the shafts 94, by the chain sprocket 101, which are secured to the shafts 94.

Shaft 94 extends on each side of the elevator chain and buckets, and carries right and left screws 97, which, when rotating convey the material to the center, and within reach of the elevator buckets 98, by which it is elevated and dropped into the hopper 102. When the hopper 102 is full,-it is emptied into the mixer 39, by means of a valve 103. This valve is on a shaft 104. The shaft is operated by a lever 105, the lever also holds the valve open or shut, by means of a hand latch 106, and the segment 107 which is notched to receive the latch, and this lever also turns the water box 40, by means of a link 41, at the same time that it is opening the valve 103. The water box 40 is supported by standards 108, and 108' on the hopper 102. The opening of the valve 103, delivers the material into the mixers 39, where the same operation is taken up as has been described. To meet the emergency of too much material being elevated to supply the mixers 39, I have added to the side of the hopper 102, a spout 109, through which excess material may be allowed to pass and bedeposlted on the side of the road, by lifting sllde 110. Connected with links 92 and to back up the work of the conveyer screws 97 and the buckets 98 is a shield 111.

I will now refer to parts of the apparatus, that have not been referred to up to the present time, and which apply principally to the use of the apparatus, in doing sheet similar paving work. In doing such work, the street or road, is either an old paved street, an old macadam road, or a new paved street or road, that has already had the cement laid down on the roadway, the sheet asphalt paving in each case being a mixed (which is generall surfacing. The prepared mixture is hauled to the site, from a plant where it has been or if the hopper 102 is'used, a similar ex-' tension would be made to it. If the asphalt is to be reinforced with wire or cord, the

process is similar to that used in the cement work, which has been described, although the wire would be finer both in gage and mesh. After the asphalt has been dropped into the slot 44, it is distributed by thebroken conveyer screws 45' and a special smoothing bottom 44", smooths it down to a point hi h enough above the finished grade to allow or the rolling down which is to follow.

At the rear of the irons 11 and 12 extend across, they are secured to the side channel irons 17 at each end, and are held rigidly together by blocks 112 and bolts 113, and adjustable blocks 114, with their bolts 115.and 116; thus making a solid beam. There is mounted on the lower flanges of this. beam, a trolley 117.

It is carried by roller 118 above, and is kept from lifting by the roller 119 below. This trolley travels back and forth onthis beam, and is limited in its movement by the stops 120. On the lower edge of this trolley there is a curved slide 121 extending outside on each side, and arranged to work on this slide is another slide 122, the slide 122 has notches 122', into which the rollers 123, of the lever 124 work, the lever- 124 is pivoted to the trolley 117 by the pin 124', in the hole 124". It willbe seen that by moving the lever 124 back and forth, when so assembled, the slide 122 will work back and forth on the trolley 117 or reverse. Mounted in the lever 124 is a pin 124" with ahole in its center crosswise, in which to fasten the end of the. cable 125.

It will be seen that when the cable 125 pulls the lever 124 in the direction of the arrow, the slide 122 will be held back to the position shown in Fig. 10, then by continued pulling of the cable, the whole trolley will be' pulled toward the opposite end of-the beams, until the roller .124 in the top of the lever, comes in contact with the block 114, then by continued pulling of the cable, the slide 122 will be reversed, and put into the position to return to the other end of the beam.

In the center of the slide 122 a hole 122" is provided, concentric with this center is a ball groove 122" on both the top and bottom of the slide, this groove is for balls to travel in. Into the hole 12 from below,

placed near a apparatus two channel is inserted the stem 126' of the'caster 126, the top of the caster has a groove simllar to 122', so that balls work between these sur-- faces. The part of the stem 126' that exsquared and on it a washer 127 is fitted, and is held on by a nut 127'. This washer has also a groove corresponding to 122", which provides for balls to work between these surfaces. The object of the ball bearing is to make a very sensitive working joint. At each end of the caster 126 on shaft 126" is mounted a roller 128, and on caster 126 there are also bolted scrapers 129.

It will be seen that when the slide 122 has been reversed, it will stand as shown in Fig. 10, with the extreme outside roller on the ground and'ready to roll down as much of the. asphalt, as has been presented tends through and beyond the" slide 122 is by the-forward movement of the apparatus, 35

' and to reroll all that it will cover for the rest of its width, and it will continue to do this in its movement across the road-way,

until'the roller 124"f strikes the block 114,

and the reverse movement begins. The roller 128 will at this time have reached the position-E, shown in dotted lines, when it will be lifted from the surfacegradually as the reversing process progresses, and the other roller on the other end of the caster will-be lowered. In the reverse movement the other roller will leave the surface at'thepoint E.

It will be observed that by this-method of rolling the material is always kept in the center of the road-way and no wrinkling can occur at the side. In Fig. 19 is shown a modification of the caster frame 126 having three rollers mounted therein, this is to show that I do not confine myself to two rollers but can use three or more.

In order to give a reciprocating movement to the trolley 117, and in order to prevent shock at each end of its movement, but to gradually. stop and start it, the apparatus hasbeen arranged .to give motion to the cable 125, from the crank 130 which is secured to a shaft 131, working in the bracket 132. On the other end of the shaft 132, a gear 133 is secured, and meshes into a gear 134, which is loose on the shaft 62, and is driven by a clutch 135, thrown in by a handle 136. The crank 130 gives a rocking motion to a segment 137, by means of the pins 138 and 139, and the 'rod 140. This segment rocks on the pin 141, held by the bracket 142, and gives motion to the shaft 143, back and forth, by the pinion 144.. The shaft 143 is carried by the brackets 145 and 146. Secured to the shaft 143 is a concave faced drum 147, around which the cable 125 is wound, and as the drum rotates back and forth, the cable is pulled back and forth just sufiicient to give the requirleld motion to the trolley 117, back and fort i Trolley 117 is provided withstop screws 117 which can be set to limit the movement of the lever 124, in the same way blocks 114 can be adjusted by the slots in the blocks, and in the beams.

In working asphalt it is necessary to keep it warm, so that it will not freeze up in the apparatus, to accomplish this the smoothing bottom 44 is hollow and steam" tight, also bottom 73 is the same way. These form jackets and there are also provided other ackets 148 and 149. 148 is connected to 44 y holes 150, and 149 is connected to 73b holes 151. The apparatus carries a sma l boiler 152, shown on Fig. 8. It is mounted on a plate 152, it is connected bysteam pipe 153, to the bottom 44". Steam or hot water circulates through the jacket 44" and 148, to the steam pipe 154, at the other end of the ap aratus. It then passes over into the jac ets 7 3' and 149, and returns through them to the steam pipe 155, thence it goes to the boiler or out mto the atmosphere. In this way the asphalt is kept hot, allowing the apparatus to work it freely, allowing the smoothing bottom 42" to press it down into all the inequalities, of the cement, and to thoroughly embed the reinforcing wire or cord, also allowing rollers 128 to still further roll down, compress, and embed the material, and leave a perfect and evenly treated roadway. The rollers 128 can be cooled with a spray of water.

The rollers 128 are attached to. a caster, in order to allow them to trail freely, so that it does not matter when the machine is advanced, there will be no pulling of the rollers endwise, otherwise, the. two operations of rolling down the paving bed and advancing the apparatus could not be carried on together.

I will now refer to the movin of the apparatus, at each'end of the sha 62 on the outside of the apparatus, is secured a crank 156. These cranks have sliding pins 15.6 which can be adjusted to and from the center of the crank, then by means of the rod 157, the cranks communicate motion to the rock arms 158, these rock arms work on the pins 9, and have a friction pawl 159, that works into the grooved back wheels of the apparatus, so that they bind while moving the apparatus, forward, and are relieved when the arms are backing. Used in connection with these arms and pawls, arethe holding pawls 160, to prevent any backing tendency, they pivot on the pins 161, and allow the apparatus to move forward freely, but will not let it back. It will be seen that by adjusting the pin 156, toward the center of the cranks 156, the motion of the machine can be made less and less in order to time the movement of the machine to the operations being performed by it. It will be seen that by groovv ing the back wheels it gives them a grip on the track and wheels.

I will now refer to the mechanism for winding the wire on to the reel. Mounted loose on the end of theshaft 62 is a sprocket 162, inoperative until the clutch 163 is thrown in by the handle 164, when it communicates motion to the reel 71, by means of a chain 165 chain wheels 166 and idler 167. The apparatus having been stopped by throwing over the pawls 159, the reel now receives a backward or winding up motion, by which wire can be wound on it.-

Referring now to the general operation of my apparatus, it will be seen and understood that, as the ap aratus advances along the paving-bed, it will supply or feed itself with the material from in front of it, which material will be "elevated into the mixer, or delivered into the elongated partly bottomless slot, and is distributed across the width of the roadway evenly, then as the apparatus gives the pawls a on the 65 advances, the smoothing bottom pressesit down and smooths it. With some kinds of material at this stage the Work is completed, and there is left behind a finished road, but with such material as sheet asphalt the material is subjected to a process of cross rolling at the rear of the apparatus, the roller mechanism being light and workin rapidly, with the weight of the apparatus 25love it, giving it efliciency to compress the material being rolled. It will be seen and understood, that the work of this apparatus can be accomplished with a minimum amount of man labor and that it must necessarily be very perfect, inasmuch as the forward movement of the machine is constant and regular, the

rolling down of the material at the rear, must be constant and regular for at each time that the roller makes a pass across the roadway, the apparatus has advanced a regular distance, in this Way, every inch of the roadway gets exactly the same treatment, which is the only way in which to make a perfect road. It will also be seen and understood that the apparatus can be used either to reinforce the paving material with wire, or not, to suit the case in hand, and when the process of reinforcing the paving material is used, the wire having been secured at the start will automatically be unwound from the reel, as the apparatus advances and will automatically be covered up, and well embedded into the paving material. This method produces a road that will stand harder usage in cement, as well as in sheet asphalt and in asphalt. It prevents stretching and working into blisters.

Referring to the rocess of placing the material on the roa way piled in the convenient way, for the apparatus to take its supply, as it is advanced, it will be seen and understood that this process entirely eliminates the man labor, heretofore used in this part of the work, and is the means of saving the largest per cent. of the man labor In domg this kind of work.

This application in so far as it relates to sheet asphalt work is the application referred to in my application of April 5th, 1909.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a paving apparatus, a bridge-like main frame, supportable at the sides of the paving bed and forwardly movable relatively to and over the paving-bed, a bottom to gage off and smooth down mixed paving material on the surface of the paving-bed carried by said frame, means flexibly attached to and in front of said frame, to gather up, elevate and deliver to a mixer c'arriedby said frame, loose material that has been resting on the surface of the paving-bed, said means freely following the inequalities in the paving-bed, irrespectively of the vertical position of said frame, and power means working. irrespectively of the forward ll'lOVGlllIlt of the apparatus to dis tribute the material delivered from the mixer, across the Width of the apparatus in front of the gaging off and smoothing down bottom.

2. In an apparatus of the character de scribed, a traveling main frame, a material receiving compartment thereon having. an elongated material discharge orifice extending across the surface operated upon, means for automatically distributing the material throughout the extent of the discharge orifice, and material compressing means acting upon the discharged material.

3. In a paving apparatus, a bridge-like main frame supportable at the sides of the paving-bed and movable relatively to and over the paving-bed, means flexibly attached to and in front of said main frame to gather up, elevate, and deliver, loose material from the surface of the paving-bed between twov walls carried by said frame, which inclose a bottomless space extending across the width of the 'paving-bed, where the material is distributed, said means freely following the inequalities in the paving-bed, irrespectively of the vertical position of said main frame, means carried by said frame to heat said walls, a smoothing bottom at the lower end of the rear wall, means carried by said frame to heat said bottom, and means to distribute the material across the width of the apparatus between said heated walls and in front of said heated smoothing bottom.

4. In a paving apparatus, abridge-like main frame, supportable at the sides ofthe paving-bed and forwardly movable relatively to and over the paving-bed, a gaging and smoothing bottom, means for heating said gagingand smoothing bottonl, means for distributing the material across the width of the apparatus, carried by said frame, means carried by said frame to heat paving material as it is distributed across the Width of the apparatus, and the gaging and smoothing bottom following said material heating means, means to press down or iron said material as the apparatus is moved forw a rd 5. In a paving apparatus, a bridge-like mafin frame, supportable at the sides of the paving-bed and movable relatively to and along the paving-bed, a gaging, smoothing and compressing bottom carried by said frame, means for heating such transverse smoothing and compressing bottom extending across the paving-bed, means for heating said bottom, a device for rolling down the paving material carried by said frame, means to work said device crosswise of the paving-bed, means for distributing material across the paving-bed between heated walls, the material distributing means preceding said gaging smoothing and compressing bottom, and compacting means following thesaid gaging, smoothing and compressing bottom.

6. In a paving apparatus, a bridge-like main frame supportable at the sides of the paving-bed and movable relatively to-and along the paving-bed, a device connected to said frame for gathering up material from the surface of the paving-bed, said device resting on the surface of the paving-bed on.

its own supports, means to elevate the mater1al gathered up by said device carried by said frame, a mixer to receive material from said elevator carried by said frame, a spout to receive material from said elevator and drop it beyond the side of the paving-bed, carried by said frame, and other means to direct the elevated material either entirely or partly into either the mixer or the spout.

In a paving apparatus, a. main frame supportable and movable'relatively to the paving-bed, a self-supporting hopper shaped device, resting on the paving-bed, and floatingly hinged to and in front of said frame, means carried in said hopper to scoop up loose material from the surface of the pav ing-bed, said means holding said material, and means to elevate, empty and lower said hopper.

8. In a pavlng apparatus, a main frame supportable and movable relatively. to the said shaft, hoisting cable attached to'said latch arm, forwardl-y projecting arms extending from said concentric scoop, a cross bar between the ends of the forwardly projecting. arms, to which said latch arm -latches, and power means to pull or. release :said cable.

9. In a-pavingapparatus, a main frame supportable and movable relatively to the paving-bed, a gathering up and elevating device, means to raise'and lower said device,

the back end of said device flexiblycbnnectbed to saidframe, the front. end of said device carried on supports whichbfollow. the inequalities of the paving-bed, and powermeans to operate, the device.

10,. In a paving apparatus, a mam frame supportable and movable relatively'to the the main frame, the front end of-said device,

paving-bed, a gathering up and gathering in device comprising an oscillatorychute.

inclined downwardly a'nd forwardly when in gathering or receiving position and movable to an upWardly'and-forwardly inclined position for discharging the. gathered material, said device being flexibly connected with said main frame for oscillatory movement-about an axis fixed .in relation with carried on supports which follow the inequalities of the paving-bed, irrespectively of the vertical position ofsaid frame.

11. In a paving app aratus,a main frame, supportable over the-paving-bed, walls carried by said frame andextending acrossthe paving-bed, which inclose'. a 'bottomlem' space in which to distribute mixed material, means carried by said frame to del ver mixed material upon the surface of the paving-bed between said walls, a revoluble shaft carried by said frame and mounted along between said walls, on which conveyor.

heaters are arranged, said heaters taking said mixed material from the points of delivery, and distributing it across the surface of the'paving-bed, until it is an even depth,

' and;power means to actuate said shaft.

12. In a pavingapparatus, a main frame,

supportable over a paving-bed, Walls carried by said frame, and extending over and across the paving-bed, which inclose a bottomless space, means carried by said frame to deliver mixed material upon the surface of the paving-bed and distribute-it evenly across the surface of the paving-bed along steam tight, to allow steam or hotj'watersaid space, said walls being made hollow and to be circulated through them", and means to furnish hot water and steam and to circulateit through said walls. i 13. In a pav ng apparatus, a main fram supportable and forwardly movable relatively to the paving-bed, two walls carried by said frame, and extending over and across the paving-bed, which inclose'a bot: tomless space, means carried by said frame todistribute mixed paving material evenly across said space and the rear wall of said two walls having a hollowv steam-tight gaging and smoothing bottom secured to it means to heat water and generate steam and to circulate the same through said bottom carried by said frame, and means to .move

the apparatus forward and bring said gagin and smoothing. bottom into action.

14.. n a paving apparatus, a main frame supportable and movable relatively to the paving-bed and rear end of said frame forming a transverse beam, which spans the pav-- ing-bed, a rollin device sliding on said beam, the under side of .said beam conforming to the transverse line of the paving-bed,

means for rolling down the pavmg' 'ing slidably mounted thereto. 15. a-paving apparatus, a main frame, supportable andmovable relatively to the paving-bed, a transverse beam carried by said mam. frame, spanning the paving-bed, the under side of said beam conforming to the transverse line, of the paving-bed, and a device consisting of a plate slidably mounted on the under side of said beam, a concave slide on the under side of said plate, a plate with acurved top mounted in the concave slide and having .a limited rocking motion in the direction of the center line of the beam, said curved topped plate having a trunnion hole in its center, in which is centered a double ended caster, with a roller or rollers in each end.-

1 6. In a paving apparatus, a main frame, {supportable and movable relatively to the paving-bed, a transverse beam carried by said main frame, spanning the paving-bed,

and the under side of said beam-being high enough above thepaving-bed, to admit of -bed, I

with its under side conforming to the de-- sired line of thepavin-bed, a device consisting of a plate slida ly mounted on the under side of said; beamwith a concave slide on .its under side in which another plate is -mounted and has a limited, rocking motion 'whereby the back roller is raised from oil the paving-bed, and the frontv roller lowered to the outside of the paving-bed.

17. In a paving apparatus, a main frame, supportable and movable relatively to the paving-bed, a transverse beam carried by said main frame, spanning the-'paving-bed,

saidibeam being double on its lower side and allowing a slot in its center, the under side of said beam conforming to' the desired transverse line of the paving-bed, a device slidably mounted on the under side of said beam, consisting of a top plate with a concave slide on its under side, in which a rocking plate having a double ended roller caster trunnioned under it rocks, 'said top plate having a lever mounted on a pincentrally in each end, the tops of said levers extending up into the slot, in the beam, and having a cable connected to them part way up, the lower ends of said levers -'extending down into notches in said rocking plate, and means to pull the cables alternately until the extreme top ends of the levers strike stops and reverse the rocking plate.

18. In a paving apparatus, a bridge like main frame, supportable at the sides and movable relatively to the paving-bed, and carrying means to smooth off and roll down a paving-bed, a smoothing bottom supported by said frame, means to heat said bottom, and the rolling down device mounted to travel on said frame back and forth across the paving-bed, and behind said heated smoothing bottom.

19. In a paving apparatus, a main frame, supportable and movable relatively to the paving-bed, a transverse beam carried by said main frame, spanning the paving-bed, with its under side conforming to the desired line of pavingJo'ed, a device for rolling down the surface of the paving-bed, slidably mounted on the under sideof the said beam and reciprocated back and forth on said beam across the width of the paving-bed by motion received from a crank, a shaft with a crank on its end mounted on said frame and rotated by the motive power of the apparatus, and means between said crank and said reciprocating rolling device,

to increase the movement received from said crank, by gearing up, to a degre where the movement is equal to the movement of said reciprocating rolling device to which the movement is communicated.

20. In a paving apparatus, a main frame supported on the sides of the paving-bed, and movable relatively to and over-the paving-bed, a transverse, beam spanning the paving-bed, carried by said frame, with its under side conforming to the desired transverse form of the paving-bed, ,a device for rolling down the surface of thepaving-bed slidably mounted on the under s1de of said beam, reciprocating back and forth on said beam across the width of the paving-bed, while rolling down the surface of the paving-bed to conform to the line established by the rails on which the side supports of said frame travel, and said device having a caster roller mounted under it which is adapted to trail after said device, while also trailing after a forward movement of the apparatus.

21. In a paving apparatus, amain frame,

sup

paving-bed, a a transverse supported on the. sides of the paving-bed and movable relatively to and over the paving-bed, a transverse beam spannmg the paving-bed, carried by said frame, with its under side conforming. to the desired. transverse form of the paving-bed, a device for'rolling down the surface of the pavingbed, slidingly mounted on the under side of said beam, reciprocating back and forth on said beam across the width of the pavingbed, while rolling down the surface of the p avingbed to conform to the line' established by the rails onwhich the side supports of said frame travel, said device having a caster roller mounted'under it, which is adapted.- to trail after said device While also trailing after a for ard movement of the ap aratus, and power-means to operate the rolling device and the forward movement of the apparatus singly or jointly.

22. In a paving apparatus, supported on the sides of the paving-bed, and movable relatively to and over the paving-bed, a device for rolling down the surface .ofthe paving-bed slidingly mounted on the under side of said frame, reciprocating back and forth transversely across thewidth of the paving-bed, in a line conforming to the desired, transverse form of the paving-bed, a

, rocking slide mounted under said device, a

roller connected to and under each end of the rocking slide, the rocking slide so operated that considering the direction of movement of the device, the back roller is always down and the front roller always up, and means to rock the slide forward as it has beentraveling when the device reverses at each end of its movement, whereby the back roller is lifted before it has traveled'entirely across the paving-bed and the front roller is lowered on the extreme side edge of the pavin -bed.

23. n a paving apparatus, a main frame, supportable. and movable relatively to the paving-bed, twowalls carried by said frame extending across the paving-bed, between which mixed paving material is distributed along, a shaft located centrally between said walls, and rotating therein to revolve conveying beaters mounted thereon, and said beaters extending radially from said shaft and terminating in a spiral bar, to drop into the material resting on the paving-bed as the shaft revolves, whereby the material is beaten and distributed,

24:. In a paving apparatus, a'main frame,

ortable and movable relatively to the shaft mounted centrally along bottomless slot and rotating therein, to revolve conveying heaters mounted loosely thereon, two beater arms extending radially from hubs around said shaft and terminating in a spiral connecting bar, notched ended dogs permanently keyed to said shaft and located between the two 117 which can be set to limit the movement of the lever 124, in the same way blocks 114 can be adjusted by the slots in the blocks, and in the beams.

In working asphalt it is necessary to keep it warm, so that it will not freeze up in the apparatus, to accomplish this the smoothing bottom 44 is hollow and steam" tight, also bottom 73 is the same way. These form jackets and there are also provided other ackets 148 and 149. 148 is connected to 44 y holes 150, and 149 is connected to 73b holes 151. The apparatus carries a sma l boiler 152, shown on Fig. 8. It is mounted on a plate 152, it is connected bysteam pipe 153, to the bottom 44". Steam or hot water circulates through the jacket 44" and 148, to the steam pipe 154, at the other end of the ap aratus. It then passes over into the jac ets 7 3' and 149, and returns through them to the steam pipe 155, thence it goes to the boiler or out mto the atmosphere. In this way the asphalt is kept hot, allowing the apparatus to work it freely, allowing the smoothing bottom 42" to press it down into all the inequalities, of the cement, and to thoroughly embed the reinforcing wire or cord, also allowing rollers 128 to still further roll down, compress, and embed the material, and leave a perfect and evenly treated roadway. The rollers 128 can be cooled with a spray of water.

The rollers 128 are attached to. a caster, in order to allow them to trail freely, so that it does not matter when the machine is advanced, there will be no pulling of the rollers endwise, otherwise, the. two operations of rolling down the paving bed and advancing the apparatus could not be carried on together.

I will now refer to the movin of the apparatus, at each'end of the sha 62 on the outside of the apparatus, is secured a crank 156. These cranks have sliding pins 15.6 which can be adjusted to and from the center of the crank, then by means of the rod 157, the cranks communicate motion to the rock arms 158, these rock arms work on the pins 9, and have a friction pawl 159, that works into the grooved back wheels of the apparatus, so that they bind while moving the apparatus, forward, and are relieved when the arms are backing. Used in connection with these arms and pawls, arethe holding pawls 160, to prevent any backing tendency, they pivot on the pins 161, and allow the apparatus to move forward freely, but will not let it back. It will be seen that by adjusting the pin 156, toward the center of the cranks 156, the motion of the machine can be made less and less in order to time the movement of the machine to the operations being performed by it. It will be seen that by groovv ing the back wheels it gives them a grip on the track and wheels.

I will now refer to the mechanism for winding the wire on to the reel. Mounted loose on the end of theshaft 62 is a sprocket 162, inoperative until the clutch 163 is thrown in by the handle 164, when it communicates motion to the reel 71, by means of a chain 165 chain wheels 166 and idler 167. The apparatus having been stopped by throwing over the pawls 159, the reel now receives a backward or winding up motion, by which wire can be wound on it.-

Referring now to the general operation of my apparatus, it will be seen and understood that, as the ap aratus advances along the paving-bed, it will supply or feed itself with the material from in front of it, which material will be "elevated into the mixer, or delivered into the elongated partly bottomless slot, and is distributed across the width of the roadway evenly, then as the apparatus gives the pawls a on the 65 advances, the smoothing bottom pressesit down and smooths it. With some kinds of material at this stage the Work is completed, and there is left behind a finished road, but with such material as sheet asphalt the material is subjected to a process of cross rolling at the rear of the apparatus, the roller mechanism being light and workin rapidly, with the weight of the apparatus 25love it, giving it efliciency to compress the material being rolled. It will be seen and understood, that the work of this apparatus can be accomplished with a minimum amount of man labor and that it must necessarily be very perfect, inasmuch as the forward movement of the machine is constant and regular, the

rolling down of the material at the rear, must be constant and regular for at each time that the roller makes a pass across the roadway, the apparatus has advanced a regular distance, in this Way, every inch of the roadway gets exactly the same treatment, which is the only way in which to make a perfect road. It will also be seen and understood that the apparatus can be used either to reinforce the paving material with wire, or not, to suit the case in hand, and when the process of reinforcing the paving material is used, the wire having been secured at the start will automatically be unwound from the reel, as the apparatus advances and will automatically be covered up, and well embedded into the paving material. This method produces a road that will stand harder usage in cement, as well as in sheet asphalt and in asphalt. It prevents stretching and working into blisters.

Referring to the rocess of placing the material on the roa way piled in the convenient way, for the apparatus to take its supply, as it is advanced, it will be seen and understood that this process entirely elimmaking material, the road making material being discharged intermediate the parallel walls, and means to distribute the material transversely in relation with the road bed.

38. In a machine of the character described, a traveling main frame movable in line with the road bed, two parallel walls carried by the main frame, spaced apart and arranged transversely in relation with the road bed, thereby forming a bottomless slot intermediate the. walls, a conveyer located intermediate the walls adapted to distribute road making material discharged into the bottomless slot intermediate the walls.

39. In a machine of the character described, a traveling main frame movable in line with the road bed, a gage member carried by the main frame and arranged trans-1. versely in relation with the road bed and the lower edge of which is elevated above the road bed a distance substantially equal to the desired depth of the covering of road making material, and a transversely disposed .conveyer located in advance of the gage member adapted to distribute road making material laterally across the road bed.

40. In a machine of the character described, a traveling main frame movable in line with the road bed, a material supply compartmentllocated on the main frame, and a mutilated screw conveyer carried by the main frame and arranged transversely in relation with the road bed, said mutilated screw being adapted to distribute road making material laterally across the road bed.

41. In a machine of the character described, a traveling main frame movable in line with the road bed, material feeding means carried thereby, a pluralityof spiral conveyer sections arranged in axial alinement transversely in relation with the road bed, each conveyer section being capable of movement about the common axis independ ent of the remaining sections.

42. In an apparatus of the character described, a traveling main frame, a presser device adapted to engage the road surface operated upon and movable in a direction transverse to the path of travel of the machine, means for automatically engaging the presser device with the .road surface adjacent to one edge thereof, and means for lifting the presser device before it reaches the opposite edge of the roadway in its transverse path of travel,

43. In a machine of the character described, a traveling main frame, means carried thereby for collecting road making material placed in advance of the main frame in the path of travel thereof, a mixer upon the main frame into which the collected material is discharged, means for distributing the material laterally across the path of travel of the main frame, means for gaging the depth of the distributed material, andmeans for compacting the gaged bed of material in unison with the advance of the main frame. 44. In an apparatus of the character des'cribed,a traveling main frame, an oscillatory carriage mounted on said main frame for reciprocatory movement, independent of its oscillation, in a direction transverse to the path of travel of the apparatus, separate presser devices carried by said carriage, and means to oscillate the carriage at the limits of its reciprocatory' movement whereby the presser devices will be alternately engaged with the road surface operated upon.

45.-In an apparatus of the character described, a traveling main frame, andressure applying meanscarried thereby a apted to engage the road way and movable alternately in opposite directions transversely to the path of'travel of the machine, and means controlling the operation of said pressure applying means whereby the presser means will begin its operation at a point beyond the termination of the preceding stroke. 1

46. In an apparatus of the-character described, a traveling main frame, reciprocatory pressure applying means moving in directions transverse to the path of travel of the apparatus, and means controlling the operation of the pressure applying means whereby succeeding strokes of said means will begin at opposite edges of the road bed and will terminate before, reaching the opposite edge of the'road bed, substantially as specified.

47. In an apparatus of the character described, a traveling main frame, two presser devices carried thereby and movable trans-- versely across the path of travel of. the ap paratus, and means for alternatelyengagin the presser devices with the roadway, an means for disengaging each presser device from the roadway at the limit of its path of travel.

48. In an apparatus of the character described, a traveling main frame, meanscarried by the main frame for collecting from the road bed in advance of the apparatus road surfacing materials, a material mixer carried upon the main frame, a distributer adapted to distribute the mixed material laterally across the path of travel of, the apcarriage movable upon the'main frame in a direction transverse to the path of travel of the main frame, compression rollers carried by said carriage, and means to oscillate the carriage as said carriage approaches the limit of its path of travel in either direction.

50. In an apparatus of the character described, means for compacting plastic material deposited upon the road bed, compris- 10 ing a traveling main frame, a pair of compression rollers movable in a direction transverse to the ath of travel of the main frame and means or alternating the operation of the compression rollers at the limits of their path of travel.

WILLIAM BAYLEY.

Witnesses H. F. MOCONKEY, ELDEN BAYLEY. 

